Parallel Circuits Flashcards
1
Q
How do you calculate the current (I) in each branh of a parallel circuit?
How do you calculate It?
A
Divide applied voltage by the resistor of that branch
Add all the branches current (I) to get It
2
Q
How is Ohm’s Law formula used to find Total Resistance in this circuit?
A
Rt = V/It
Divide the applied Voltage by the sum of all the currents (It)
Total resistance is ALWAYS less than the value of any single branch resistance.
3
Q
What is the product over sum formula?
A
Provides the same answer as Ohm’s Law formula
(see photo)
4
Q
What is the reciprocal formula?
A
5
Q
What are the steps for determining voltage drops in a Series-Parallel Circuits?
A
- Find total resistance
- Calculate total current V/Rt = It
- Calculate voltage drops It x R1 = Vr1
